Class: Jabber::Bytestreams::SOCKS5BytestreamsPeer

Inherits:
Object
  • Object
show all
Defined in:
lib/xmpp4r/bytestreams/helper/socks5bytestreams/server.rb

Overview

This class will be instantiated by SOCKS5BytestreamsServer upon accepting a new connection

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(socket) ⇒ SOCKS5BytestreamsPeer

Initialize a new peer

socket
TCPSocket 


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# File 'lib/xmpp4r/bytestreams/helper/socks5bytestreams/server.rb', line 144

def initialize(socket)
  @socket = socket
  Jabber::debuglog("SOCKS5 BytestreamsServer: accepted peer #{@socket.peeraddr[2]}:#{@socket.peeraddr[1]}")
end

Instance Attribute Details

#address ⇒ Object (readonly)

Returns the value of attribute address.



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# File 'lib/xmpp4r/bytestreams/helper/socks5bytestreams/server.rb', line 139

def address
  @address
end

#socket ⇒ Object (readonly)

Returns the value of attribute socket.



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# File 'lib/xmpp4r/bytestreams/helper/socks5bytestreams/server.rb', line 139

def socket
  @socket
end

Instance Method Details

#start ⇒ Object

Start handshake process



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# File 'lib/xmpp4r/bytestreams/helper/socks5bytestreams/server.rb', line 151

def start
  auth_ver = @socket.getc
  if auth_ver != 5
    # Unsupported version
    @socket.close
    return
  end

  auth_nmethods = @socket.getc
  auth_methods = @socket.read(auth_nmethods)
  unless auth_methods.index("\x00")
    # Client won't accept no authentication
    @socket.write("\x05\xff")
    @socket.close
    return
  end
  @socket.write("\x05\x00")
  Jabber::debuglog("SOCKS5 BytestreamsServer: peer #{@socket.peeraddr[2]}:#{@socket.peeraddr[1]} authenticated")

  req = @socket.read(4)
  if req != "\x05\x01\x00\x03"
    # Unknown version, command, reserved, address-type
    @socket.close
    return
  end
  req_addrlen = @socket.getc
  req_addr = @socket.read(req_addrlen)
  req_port = @socket.read(2)
  if req_port != "\x00\x00"
    # Port is not 0
    @socket.write("\x05\x01")
    @socket.close
    return
  end
  @socket.write("\x05\x00\x00\x03#{req_addrlen.chr}#{req_addr}\x00\x00")
  Jabber::debuglog("SOCKS5 BytestreamsServer: peer #{@socket.peeraddr[2]}:#{@socket.peeraddr[1]} connected for #{req_addr}")

  @address = req_addr
end